📄 En¶

This dataset, a subset generated by the RAG-Datasets team, supports research in question answering by providing questions and answers derived from Wikipedia articles, along with difficulty ratings assigned by both question writers and answerers. It includes files for questions from three student cohorts (S08, S09, and S10) and 690,000 words of cleaned Wikipedia text, facilitating exploration of question generation and answering tasks.

Tags: license:cc-by-2.5, url:https://huggingface.co/datasets/rag-datasets/rag-mini-wikipedia/, category:dataset

cards.rag.documents.miniwiki.en

TaskCard(
    loader=LoadHF(
        path="rag-datasets/rag-mini-wikipedia",
        name="text-corpus",
        data_classification_policy=[
            "public",
        ],
    ),
    preprocess_steps=[
        RenameSplits(
            mapper={
                "passages": "train",
            },
        ),
        Cast(
            field="id",
            to="str",
            to_field="document_id",
        ),
        Wrap(
            field="passage",
            inside="list",
            to_field="passages",
        ),
    ],
    task="tasks.rag.corpora",
    templates={
        "empty": InputOutputTemplate(
            input_format="",
            output_format="",
        ),
    },
)

[source]

from unitxt.collections_operators import Wrap
from unitxt.loaders import LoadHF
from unitxt.operators import Cast
from unitxt.splitters import RenameSplits
from unitxt.templates import InputOutputTemplate

Explanation about TaskCard¶

TaskCard delineates the phases in transforming the source dataset into model input, and specifies the metrics for evaluation of model output.

Args:

loader:
specifies the source address and the loading operator that can access that source and transform it into a unitxt multistream.

preprocess_steps:
list of unitxt operators to process the data source into model input.

task:
specifies the fields (of the already (pre)processed instance) making the inputs, the fields making the outputs, and the metrics to be used for evaluating the model output.

templates:
format strings to be applied on the input fields (specified by the task) and the output fields. The template also carries the instructions and the list of postprocessing steps, to be applied to the model output.

Explanation about LoadHF¶

Loads datasets from the HuggingFace Hub.

It supports loading with or without streaming, and it can filter datasets upon loading.
Args:

path:
The path or identifier of the dataset on the HuggingFace Hub.

name:
An optional dataset name.

data_dir:
Optional directory to store downloaded data.

split:
Optional specification of which split to load.

data_files:
Optional specification of particular data files to load. When you provide a list of data_files to Hugging Face’s load_dataset function without explicitly specifying the split argument, these files are automatically placed into the train split.

revision:
Optional. The revision of the dataset. Often the commit id. Use in case you want to set the dataset version.

streaming (bool):
indicating if streaming should be used.

filtering_lambda (str, optional):
A lambda function for filtering the data after loading.

num_proc (int, optional):
Specifies the number of processes to use for parallel dataset loading.

Example:
Loading glue’s mrpc dataset
load_hf = LoadHF(path='glue', name='mrpc')

Explanation about Cast¶

Casts specified fields to specified types.

Args:
default (object): A dictionary mapping field names to default values for cases of casting failure. process_every_value (bool): If true, all fields involved must contain lists, and each value in the list is then casted. Defaults to False.

Explanation about InputOutputTemplate¶

Generate field ‘source’ from fields designated as input, and fields ‘target’ and ‘references’ from fields designated as output, of the processed instance.

Args specify the formatting strings with which to glue together the input and reference fields of the processed instance into one string (‘source’ and ‘target’), and into a list of strings (‘references’).

References: tasks.rag.corpora